The labor movement in the U.S. was fueled by a variety of social conditions, particularly during the late 19th and early 20th centuries. Industrialization led to harsh working conditions, long hours, and low wages, prompting workers to seek better treatment and rights. Additionally, the rise of child labor, unsafe environments, and economic disparities contributed to growing discontent among the working class. Labor unions began forming to advocate for workers' rights, pushing for fair wages, reasonable working hours, and safer workplace conditions. The movement gained momentum, leading to significant strikes, campaigns, and eventual legislative reforms aimed at improving labor standards.